Wireless Signal Reception with Multiple Numerologies
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving signals between user equipment and base stations, particularly in supporting various numerologies, which affects the reliability and latency of communication services.
Innovation Solution
The implementation of a method that allows user equipment to receive downlink control signals and data from a base station by utilizing multiple downlink control regions with different numerologies, enabling efficient signal scheduling and transmission through specific processor configurations in both user equipment and base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single downlink control region is used for signal transmission, then the device complexity is reduced, but the adaptability to various numerologies deteriorates
Solution Approach 1:
The downlink control region is segmented into multiple types (first type indicated by system information, second type configured by base station) with different numerologies. This segmentation allows the system to support various numerologies (15 kHz, 30 kHz, 60 kHz subcarrier spacings) by assigning appropriate control region types to different service requirements, thereby achieving adaptability without requiring a completely new control structure for each numerology.
Solution Approach 2:
The patent creates a universal downlink control region framework that can handle multiple numerologies through a unified methodology. The first and second control regions serve multiple functions: the first region handles common control information with 15 kHz spacing, while the second region handles UE-specific control with configurable spacing (30 kHz, 60 kHz). This multi-functional design allows a single control structure to adapt to different service types (eMBB, mMTC, URLLC) without requiring separate control mechanisms for each.
2Adaptability or versatility
If multiple downlink control regions with different numerologies are implemented, then the adaptability to various numerologies is improved, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by having the base station pre-configure the second downlink control region parameters (time-frequency resources, numerology) before actual data transmission. The user equipment is pre-configured with the relationship between control region types and their corresponding numerologies through system information. This preliminary configuration allows the UE to efficiently process incoming control signals without requiring complex real-time decisions about which numerology to use, thereby maintaining ease of operation despite supporting multiple numerologies.
3Loss of energy
If control information is transmitted through system information, then the signaling overhead is reduced, but the productivity of data transmission is limited
Solution Approach 1:
The patent segments control information transmission into two paths: common control information is transmitted through system information (first downlink control region with 15 kHz spacing), while UE-specific control information is transmitted through dedicated RRC signaling (second downlink control region with configurable spacing). This segmentation reduces overall signaling overhead by broadcasting common information once for all UEs, while maintaining high data transmission productivity through efficient UE-specific scheduling with appropriate numerology selection for each service type.
Data Source
AI summary
Disclosed are a method for transmitting or receiving a signal between a terminal and a base station in a wireless communication system and a device for supporting the same. More particularly, disclosed are a configuration for receiving a downlink control signal and corresponding data from a base station by a terminal when diverse numerologies are applied, and a corresponding operation configuration of the base station.